http://qiserver.ugr.es/cod/9017256.cif
http://qiserver.ugr.es/cod/9017257.cif
http://qiserver.ugr.es/cod/9017258.cif
http://qiserver.ugr.es/cod/9017259.cif
http://qiserver.ugr.es/cod/9017260.cif
http://qiserver.ugr.es/cod/9017261.cif
http://qiserver.ugr.es/cod/9017262.cif
http://qiserver.ugr.es/cod/9017263.cif